Mixing-valve



S. N. HOLIVI.

MIXING VALVE.

APPLICATION FILED JULY 5.1919.

Patented; July I2, IISIZII..

MSWI-9132.

2 SHEETS-SHEET I.

S, N. HULIVI.

MIXING VALVE l APPLICATION YILEDIIULY 5, I9I9. l l S8-@I9 1I SQ, Patented July 12, H2L

2 SHEETS- SHEET 2- IGJIIII HEX `, entre@ stares ears-Nr creams.

SVEN N. EGEM, @F DQRCJEDESTIEJR, MASSACHUSETTS.

a tamme-valve'.

pasarse.

specificate-imi of Letters raient. )Patented July 12, 1921.

Application ledl 3111515, 1919. Serial No. 305,764.

shut-oli valves at the tub and shower con-,

nections is made for controlling the water discharge from the mixing chamber. My invention aims to provide simple and eiiective structure for delivering hot or cold water or a mixture thereof, for indicating the exact temperature'oi the mixture or either of the constituents, and for selectively controlling the discharge of the mixture, or either of its constituents, to a tub or shower connection. My invention provides in a single valve structure a combination intake and discharge control so constructed and arranged lthat the operation shutting off the delivery to the tub, for example, will automatically open the delivery to the shower connection, and vice Versa, thus dispensing with the necessity for the usual shut-od' valves at the tub and shower connections.

The construction and operation of my device is disclosed in the followin specification and drawings, throughout w 'ch corresponding reference numerals are used lto indicate corresponding parts. ln the drawigures l and lll are side and front elevations, respectively, of a mixing valve in accordance with my invention.

Fig. IH is a longitudinal section thereof.

Fi llV is a vertical sectionlon the line lV- V of Fig. ll,

Fig. V is a vie7 looking down into the mixing chamber, the cover and spindle for the intake valve being removed.

` Fig. Vl is a plan section through the mix- 'ing chamber, 'particularly illustrating the rotatable 'sleeve valve controlling the mixture discharge from the mixing chamber.

Fig. VH isa detail view of the intake valve and its seat, in top plan.

Fig. VIH is a cross section thereof.

Fig. IX is an elevation `showing the parts set to'permit adjustment of the sleeve valve.

Fig. X is a detail view particularly showing the ported sleeve valve. Y

Fig. Xl is a plan view thereof.

Figs. XH and Xllllll are detail views oit the valve spindle removed.

Fig. XlV is a. detail view in plan and elevation of the notched setting nut which lixes the position of the ported sleeve valve, and

Fig. XV is a detail view in plan and elevation oi the locking nut which cooperates with the setting nut.

' l have indicated at 1 the bowl or mixing chamber of my valve. The mixing chamber -is constructed as a shell of generally cylindrical form providing a dat valve seat 2 through which are let spaced hot and cold water inlet ports 3 and Il, the shell at one side of said seat being extended, as indicatedV at 5, and providing a' hot water intake 6 and a cold water intake connection at 7. The inlets 6 and 7 provided by the walled extension`5 are separated from each other by a web 8. At the opposite side of the valve seat 2, the shell is provided with a tub connection 9 and a shower connectionsll oppositely arranged as to each other. The shower connectionll may have an offset 10 opening into the mixing chamber and pierced to receive a thermometer 12, the mercury end oi the thermometer being exposed directly to the mixture within the chamber l and the reading end extending upwardly forconvenient observation and to some extent for protection by the riser 13 threaded into connection 11.

Set through seat 2 is a threaded stud 14: upon which is rotatabl mounted a disk valve 15 which is provi ed, as here shown, with a single port 16 adapted to selectively lap ports 3 and 4 and of suiiicient extent to simultaneously lap both of said ports. (See VH.) he valve 15 may be rotated b any convenient mechanism to regulate t e inlet of water into the mixing chamber. For the purposes of this application, l have shown the exposed face of the valve as provided with a squared head or facing 17 which is ingly shaped Wrench socket 18 of a rotatable valve spindle 19. The facing 17 ma be cast l upon the valve, and is so shown in t e draw- Aadapted to be engaged by the correspondiio ' to insure positive transmission of the through seat 2 and projecting into the arc ofA and XIII, to key with said ribs 20, whereby tive tendency of the spindle to valve. The rotation of the valve in either direction may be Ylimited, as by trimming, away a portion of its periphery, stop shoulders 23 adapted to abut a fixe stop 24, here shown as a'simple screw set travel of said shoulders. The free end of the spindle 19 may be squared to receive ano erating handle 25 land an indicator 26 w ich travels over suitable markings 27 upon the outer face of a cover 28 threaded into the open end of the mixing chamber 1, whereby to indicate the position of the disk valve 15. s

In the construction as thus far described,

`rotation of the disk valve 15, controls the intake of hot and cold water separately into the mixing chamber through ports 3 and 4, according to which port the port 16 or valve 15 is turned into registry with, or where a mixture is desired, whether port 16 laps both ports 3 and 4. By arranging the intakes 6 and 7 for the hot and cold water in the extension 5 of the bowl 1 at one -side of valve seat 2, the entire internal area of the bowl is left uninterrupted vand the water entrance into the bowl is directly closed by a face of the valve. When the valve 15 is opened, the water Hows through port 16 thereof into the mixing chamber and discharges therefrom through either tub connection 9 or shower connection 11, according to the position of a rotative discharge valve. The valve controlling the discharge of the hot or cold water, or mixture thereof, from the .mixing chamber 1 is here shown as a ported sleeve or shell comprising a relatively flat surmounting head 29 and an annular rim portion 30. The head 29 is ported as indicated at 31, Fig. XI, and the rim 30 as indicated at-32, Flg. XII, ports 31 permitting passage of the water through the valve to the -thermometer and ports 32, permitting discharge of the water into'tub or shower connection, according to the osition .of said Yporlt 32 with relation to t e connections 9 or Extending vfrom the head 29 isa tubular stem 33 upon which the cover 28 'is mounted and through which spindle 19 extends and is journaled in a stuffing box nut 34 threaded on the outer threaded end 331 of said stem 33. The cover 28 is made Water-tight on said stem `by. a stuffing box 35, the cover 28 i being reduced and externally threaded as indicated at' 36 to receive the stuffing -box collar ornut 37. Said nut as here shown Ais rota-y as indicated at 22 leavingase/aise tongue and groove connection at 38-39 is normally held, .as by a coiled spring 41 conned about the stem 33, between a shoulder 33a thereon and the internal face of the cover 28. When interengaged, nuts 37 and 7C 40 prevent rotation of stem 33. The spring 41 also tends to hold the valve to its seat' against the lifting effect of the water entering the mlxing chamber through ports 4 and 3. By drawing nut 40 outwardly along 75 i the stem 33 a suflicient distance to clear lugs 39 'fromslots 38, as indicated in Fig. Ii, said stem may be turned to bring one or the other of its ports 32 into or out of registry with tub connection 9 or shower con- 80 nection 11, thus regulating the discharge of water from the mixing chamber. The relation of the kerfs 38 to the ports 32 is such that a partial turn ofthe stem to move ,the

lugs 39 from -one set of kerfs to another 85 carries a port 3.2.,out of registry with the tub connection 9, for example, closmg that connection, and brings another port 32 into registry with the shower connection, opens.

said outlets,.and that a single operation of 95 the said sleeve valve automatically opens one of said outlets and closes the other. this construction, I avoid the necessity for individual shut-offs in the tub and shower connections.

Various modifications 'in the form and construction of my device may obviously b e made, all without departing from the spirit of my invention if within thelimits yof the apv ended claims.

Vhat Iatherefore claim and desire to se` cure by Letters Patent is:

1. In a mixing iixture,.a mixing chamber having independent pairs of inlet and discharge openings, mounted coaxially within said mixing ber and wcontrollin said openings.

2. In'a mixing xture, a mixing chamber cham- Vhaving a pair of inlet openings and a pair of s aced mde endent discharge openings, 115

3. In a mixing fixture, a mixing chamber1`20Y having a pair of inlet openings and a 'pair of s aced independent discharge openings, v a va ve controlling said inlet openings and a sin le valve mounted within said mixing and independent valves 65 threads 3314i stein 33 beyond nut 37. The

cham er and simultaneouslycontrolling both 125 of said 'discharge openings, and consisting of av rotatable shell having spaced orts adapted to be brouglht'into and out o registry with said disc arge openings.

4. In a mixing fixture, a" mixing chamber provided with a series of -radially disposed peripheral kerfs 38 with which 1s adapted .to engage an opposingseries of lugs 39 4formed on a locking nut 40applied tothe meente having a pair of inlet openings and a pair of spaced independent discharge openings, a valve controlling said inlet openings, a control for said discharge opening comprising a valve rotatably mounted within said mixing chamber and having ports adapted to be selectively brought into and out of registry with said discharge openings, and

sprmg-tensioned relatively separable interlocking devices for permitting and preventing rotation of said discharge valve to vary the positioning of the ports thereof relative to said discharge openings.

5. In a mixing fixture, a mixing chamber having a pair of inlet openings and having independentdischarge openings, a valve conable locking p1ece on said stem normally interengagedto prevent operation of said sleeve valve and separable to permit operation thereof, and a spring normally tendin to maintain said locking pieces interengage 6. lln a mixing lixture, a mixing chamber having a pair of inlet openin and having independent discharge openings, a valve controlling said inlet opening, a control for said discharge openings mounted within;- said mixing chamberand comprising a cupshaped sleeve valve having a stem-provided head and a port-provided annular rim, the ports of said rim being adapted to be selectively brought into andout of registry with said discharge openings by rotation of the sleeve valve, a relatively fixed anda relatively movable 'locking piece on said stem having interengaging tongues and grooves, a coil spring about said stem normally tending to maintain said locking pieces interengaged,`said stem being tubular, and an operating spindle for said inlet control extending through said stem and exposed beyond the end thereof for hand operation.'

7. In a mixing fixture, a mixing chamber having a pair ofinlet openings and a discharge connection, an inlet control valve and a discharge control valve mounted within said chamber, said discharge 'connection having an o'set opening into said mixing chamber, and said discharge control valve having a port adjacent said oliset and `having a port adapted to register with said disf charge connection, and a thermometer mounted said o'set with its mercury end extending into said mixing chamber and exposed to the mixture passing through said ort. p 8. ln having a of discharge openings, a valve mounted Within said chamber and controlling said inlet openings, and a second valve mounted within said chamber in coaxial.l relationto said first-named valve and controlling said discharge openings.

9. ln a mixing fixture, a mixing chamber having a pair of inlet openings, and a pair of discharge openings, a valve mounted ap mix-ing fixture, a mixingchamber pair of inlet openings and a pair within said chamber and controlling said inlet openings, and a second valve mounted within said chamber and having ports adapted to be selectively brought into registry with said discharge openings.

10. ln a mixing fixture, a mixing chamber having a pair of inlet openings and a pair of discharge openings, a valve mounted within said chamber and controlling said inlet openings, and a second valve mounted within said chamber and consisting of a cup-shaped sleeve having a stem-provided head by means of which lsaid sleeve valve may be. rotated and having a port-provided rim, the ports of said rim being adapted to be selectively brought into and out of registry with said discharge openings by rota tion of the sleeve'valve. .i 11. In a mixing fixture, a mixing chamber having a pair of inlet openings, and a pair of discharge openings, a lvalve mounted yin said chamber and controlling said inlet openings, and a second valve mounted within said chamber and having a pair of ports movable into yand out of registry with said discharge openings whereby upon operation of said second named valve one of said discharge openings is automatically opened and the other discharge opening is automatically closed. o

ln testimony whereof I afix my signature in presence of two witnesses.

`V1cfroR1A LownEN,

Gnonen B. RAwLINes.

loll 

